Heptathela yakushimaensis Ono, 1998

Xu, Xin, Ono, Hirotsugu, Kuntner, Matjaz, Liu, Fengxiang & Li, Daiqin, 2019, A taxonomic monograph of the liphistiid spider genus Heptathela, endemic to Japanese islands, ZooKeys 888, pp. 1-50 : 1

publication ID

https://dx.doi.org/10.3897/zookeys.888.34494

publication LSID

lsid:zoobank.org:pub:B995C056-97EC-41A4-9012-B58F9D3AFDC1

persistent identifier

https://treatment.plazi.org/id/93A7B0B1-F5C7-51FD-AF14-90890EE18AF2

treatment provided by

ZooKeys by Pensoft

scientific name

Heptathela yakushimaensis Ono, 1998
status

 

Heptathela yakushimaensis Ono, 1998 Fig. 8 View Figure 8

Heptathela yakushimaensis Ono, 1998: 23 (holotype: female, from Mt. Kunibaidake, Yakushima Island, Kagoshima-ken, Japan, collected by A. Tanikawa on 15 July 1990, deposited in NMNS, examined); Ono 2009: 83.

Heptathela kimurai yakushimaensis: Haupt 2003: 69.

Diagnosis.

Males of H. yakushimaensis differ from those of all other Kyushu group Heptathela species by a strongly serrated prolateral conductor margin ( Fig. 8G, H, J, K View Figure 8 ), the tapered tegular marginal apophysis ( Fig. 8L, M View Figure 8 ), and a larger tegular terminal apophysis ( Fig. 8L, M View Figure 8 ). Females of H. yakushimaensis differ from those of H. kimurai and H. higoensis by the finely granulated inner receptacular clusters that are smaller than the outer ones ( Fig. 8 A–F View Figure 8 ), and from those of H. kikuyai by the inner receptacular clusters lacking well defined stalks. H. yakushimaensis also differs from all other Kyushu group Heptathela species by the following unique nucleotide substitutions in the standard DNA barcode alignment: T (56), A (68), T (74), G (77), C (84), C (89), C (95), G (98), C (107), A (110), C (122), T (131), T (143), T (164), T (167), C (188), C (200), C (212), T (215), C (216), G (218), T (236), G (242), T (248), G (251), C (278), A (284), T (293), C (294), C (308), T (323), C (347), C (356), T (392), T (395), C (396), T (401), T (407), C (411), C (413), C (417), G (422), G (425), C (437), C (438), A (443), T (455), T (458), T (461), T (482), T (488), C (510), T (528), A (530), A (536), A (539), T (548), G (557), C (567), C (584), T (591), T (632), T (635), G (638), T (650), A (665).

Description.

Males (N = 2). Carapace brown; opisthosoma light brown, with dark brown tergites close to each other; cheliceral groove with 10-13 denticles; 7 spinnerets. Measurements: BL 8.70-10.50, CL 4.27-5.50, CW 4.00-4.90, OL 3.80-6.10, OW 2.40-4.40; ALE> PLE> PME> AME; leg I 13.27 (3.70 + 1.60 + 2.72 + 3.50 + 1.75), leg II 13.71 (3.55 + 1.65 + 2.80 + 3.75 + 1.96), leg III 14.65 (3.52 + 1.65 + 2.78 + 4.50 + 2.20), leg IV 18.64 (4.35 + 1.70 + 3.72 + 6.20 + 2.67).

Palp. Prolateral side of paracymbium unpigmented and unsclerotised, numerous setae and spines at the tip of paracymbium ( Fig. 8 G–I View Figure 8 ). Contrategulum with serrated margin proximally and smooth margin distally, and slightly curved at the proximal 2/3 of contrategulum ( Fig. 8G, H, J, K View Figure 8 ). Tegulum with serrated margin, widest in the middle ( Fig. 8 K–M View Figure 8 ). Conductor prolateral margin strongly serrated ( Fig. 8G, H, J, K View Figure 8 ). Embolus wide with two peaks ( Fig. 8 G–K View Figure 8 ).

Females (N = 8). Carapace and opisthosoma colour as in male; cheliceral groove with 12-15 pronounced denticles; tergites similar to male; 7 spinnerets. Measurements: BL 9.10-14.80, CL 4.50-6.80, CW 4.05-5.90, OL 4.70-8.60, OW 3.00-6.40; ALE> PLE> PME> AME; palp 9.72 (3.22 + 1.70 + 2.10 + 2.70), leg I 11.15 (3.45 + 1.90 + 2.05 + 2.35 + 1.40), leg II 9.61 (3.07 + 1.90 + 1.00 + 2.36 + 1.28), leg III 11.75 (3.25 + 1.95 + 2.05 + 2.80 + 1.70), leg IV 16.30 (4.25 + 2.25 + 2.90 + 4.40 + 2.50).

Female genitalia. A pair of depressions on the ventro-lateral part of genital atrium. A pair of receptacular clusters along the anterior margin of bursa copulatrix, divided into two parts, the inner part is similar or smaller than the outer part, on which there are several small granules ( Fig. 8 A–F View Figure 8 ).

Material examined.

JAPAN · 2 ♂♂, 8 ♀♀; Kagoshima-ken, Kumage-gun, Yakushima-cho, Mt. Kankake-dake; 30.37N, 130.39E; alt. 170 m; 24 September 2013; D. Li and B. Wu leg.; XUX-2013-490, 491, 493 to 500 (500, ♂ matured 2 August 2014 at CBEE).

Distribution.

The species is known from the Kagoshima prefecture on the Japanese island Yakushima ( Fig. 1C View Figure 1 ).

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Araneae

Family

Liphistiidae

Genus

Heptathela